The average distance from the sun to the planet Mars is about 228,000,000 km. The diameter of a human hair is about 0.0029 cm. (a) What is the distance from the sun to Mars written in scientific notation?
(b) What is the diameter of a human hair written in scientific notation?
(c) In comparing the measurements in Parts (a) and (b), what else must be done before a comparison is made?
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What are the solutions to the equation 4x2+3x=24-x

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.